The last 30 years were the hottest on record for the United States

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1 The last 30 years were the hottest on record for the United States Sat Dec 11, 2021 1:43 am

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There’s a new normal for U.S. weather. On May 4, the National Oceanic and Atmospheric Administration announced an official change to its reference values for temperature and precipitation. Instead of using the average values from 1981 to 2010, NOAA’s new “climate normals” will be the averages from 1991 to 2020.
This new period is the warmest on record for the country. Compared with the previous 30-year-span, for example, the average temperature across the contiguous United States rose from 11.6° Celsius (52.8° Fahrenheit) to 11.8° C (53.3° F).

Hot spots

NOAA’s new climate normal, the period from 1991 to 2020, shows that average temperatures in the contiguous United States increased across most of the country compared with the averages from 1981 to 2010.

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